InfoPath Dev

 Hello friends, In Infopath 2007, I want to list users in a  DropDownList control using the http://ServerName/_vti_bin/UserGroup.asmx web service's "GetUserCollectionFromSite" method. But when i add this web service as a Secondary Receiver data source to my form, i can't see repeating group fields of this ...

 "Hi some clarification is needed I think.  Are you saying that you have a form with a "attach file" control and you want the attached file to be saved into a seperate SP library than the submitted form?"    Yeah, this is what i'm looking for. How can  do this?